Quote:
Originally Posted by sammyg2
Electric driven "superchargers" are not turbochargers by definition and typically do not product much boost at all.
They are meant to help the turbos spool much quicker and reduce turbo lag.
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In this particular case, the electric motor is driving a separate supercharger. The piping to the separate super charger is bypassed unless needed. Compared to an electrically assisted turbo charger, this has less mass and less drag when the electrical assist is not active.
The system may be acting in the opposite that you prescribe. It appears to use a smaller turbo with minimal lag and lower peak output that is in operational boost levels at modest amounts of power, and the electric super charger is kicking in with large right foot applications.
Sense the turbo is far more energy efficient than the electric, this results in keeping the energy efficient gains of the turbine, but with additional horsepower at will from the electric super charger.